Worby gave the woman mifepristone crushed up in a glass of orange juice. The next day he administered misoprostol during a sexual assault.
The pills are commonly used together to induce a miscarriage in early pregnancy.
They are usually given 24 hours apart and can be administered at home after a women has had a consultation with a doctor.
Worby's victim, who cannot be named for legal reasons, suffered a miscarriage in hospital within hours of the assault, which happened in 2022.
Worby obtained the medication from a friend, Neuza Cepeda, who posed as a woman in need of an abortion.
After a phone consultation with a doctor at a London clinic, they sent her the medication.
The pills-by-post scheme enables women who are less than 10 weeks pregnant to access abortion medication after a phone or video consultation with a doctor.
It was introduced during the Covid pandemic to ensure women could continue to access terminations during early pregnancy. The scheme was made permanent in March 2022.
Critics have said the removal of the requirement for an in-person medical appointment leaves the process open to abuse.
Earlier this year, a cross-party group of MPs tabled an amendment to the Criminal Justice Bill to try to restore the pre-pandemic requirement for a face-to-face medical check before abortion medication could be prescribed.